Recently we had that H1N1 (Swine Flu) invade our entire house. All 6 of us had it. We took Tamiflu. However, my 4 kids all had milder cases of it and the ER doctor said that the Elderberry and Zinc in this product is probably what did it. I am grateful and thankful that we have this product. John and I, however, didn't take it and this Flu kicked our butts into next year!!!! I am still not feeling right. I know this works. (The kids have started taking it back in August 2009 consistantly) Oh, and the kids LOVE the taste of this product.